Fix : climbing-stairs line lint fix

Author: sungjinwi

climbing-stairs/sungjinwi.py

@@ -18,4 +18,4 @@ def climbStairs(self, n: int) -> int:
         prv, cur = 1, 2
         for _ in range(3, n + 1) :
             prv, cur = cur, prv + cur
-        return (cur)
+        return (cur)